CN104734145B - Based on the micro-grid connection control method for blending together hierarchical structure model - Google Patents
Based on the micro-grid connection control method for blending together hierarchical structure model Download PDFInfo
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Abstract
The present invention is blended together unit and micro-grid connection runtime is controlled based on the micro-grid connection control method for blending together hierarchical structure model using decision-making, coordination, execution three-level.Decision package control algolithm includes the active power dispatch of micro-capacitance sensor, Reactive Power Dispatch, grid-connected scheduling, isolated island is dispatched and the quality of power supply regulation of one-level PCC points is dispatched, coordination unit control algolithm includes the active power dispatch of distributed power source and load, Reactive Power Dispatch, grid-connected scheduling, isolated island is dispatched, two grades of quality of power supply regulation scheduling of PCC points and one-level PCC points and the real power control of network interface output, idle control, utility power quality control, the connection control of Comprehensive Control and one-level PCC points, disconnect control, execution unit control algolithm includes the real power control of two grades of PCC points and network interface output, idle control, utility power quality control, Comprehensive Control and two grades of connection controls of PCC points, disconnect control, realize efficiently, it is economical, it is reliable, pervasive good combination.
Description
Technical field
The invention belongs to field of power, it is related to a kind of micro-grid connection control method theoretical based on hybrid system.
Background technology
Micro-grid connection operation is the most effective measure for improving distributed power generation efficiency, and high performance Grid-connected Control Strategy is
Ensure the basis of micro-grid connection operation.Micro-capacitance sensor as power system emerging power network, the uncertainty of its diversified form
Distributed power generation brings the production of electric power, transmits and uses the complicated and changeable of process so that micro-grid connection system shows
Significant uncertain, non-linear and non-homogeneity, as comprising discrete event and continuous variable dynamic behaviour and its phase interaction
Hybrid system, it is difficult to described with the differential equation of reflection Continuous behavior, increased answering for micro-grid connection control process
Polygamy.
The existing micro-grid connection control method based on the continuous dynamic model of continuous time system, its sharpest edges is energy
It is enough that controlled system is modeled using classical differential mathematical method.However, due to the power electronics for micro-grid connection
The working mechanism of the grid-connected power interface of current transformer is typical switching behaviour, and open and the shut-off of its power electronic devices are discrete
Event behavior, the circuit operation mode after on off state determines is continuous variable behavior, due to the distributed power source in micro-capacitance sensor
Exert oneself in the presence of very big randomness and intermittence, existing discrete event behavior has continuous variable behavior again, due to micro-capacitance sensor scheduling
Management is typical decision behavior, and the issuing process of its operational order is obvious discrete event behavior, and its decision instruction is performed
The micro-capacitance sensor course of work afterwards is to include continuous variable behavior.These discrete event behaviors and continuous variable behavior are not that
This is isolated, still influences each other, interacts, therefore, micro-grid connection system contains discrete event behavior and continuous change
, there is obvious uncertain, non-linear and non-homogeneity in amount and its interaction, be typical hybrid system.Existing base
In the micro-grid connection control method of the continuous dynamic model of continuous time system, the switch that substantially have ignored power device is special
Property, randomness and intermittent characteristic that distributed power source is exerted oneself are have ignored, have ignored micro-capacitance sensor management and running is typical decision-making
Characteristic, using single Continuous behavior pattern come it is approximate it is non-it is single blend together behavior pattern, designed on the model of this simplification
Controller has larger limitation, it is impossible to objectively respond micro-grid connection operation Changing Pattern, control effect in principle only
Can convergence and can not be completely the same, be constantly present uncontrollable composition.
In view of the above-mentioned deficiency of the existing micro-grid connection control method based on the continuous dynamic model of continuous time system,
Present invention proposition is a kind of based on the micro-grid connection control method for blending together hierarchical structure model, abundant, true, complete using energy
Journey, subtly reflection micro-grid connection operation action feature blend together hierarchical structure model, can not only strengthen micro-capacitance sensor
The grid-connected flexibility of middle distributed power source, and the working characteristics of micro-grid connection power interface can be improved, eliminate micro-capacitance sensor
And the quality of power supply pollution between main power network, realize that micro-capacitance sensor close friend is grid-connected, micro-capacitance sensor is turned into the electric energy matter for improving main power network
Amount, power supply reliability, effective support of safety in operation.
The content of the invention
The purpose of the present invention be it is a kind of more can fully, true, whole, subtly reflection micro-grid connection operation action feature
High efficiency method, overcome the shortcomings of the existing micro-grid connection control method based on the continuous dynamic model of continuous time system,
Existing micro-grid connection control method is solved because approximate non-single to blend together behavior pattern using single Continuous behavior pattern
And produce on control principle can only convergence and can not technical problem that is completely the same, being constantly present uncontrollable composition.
The present invention is adopted based on the micro-grid connection control method for blending together hierarchical structure model to micro-grid connection operation
With decision-making, coordination, perform three-level and blend together and pass rank unit and be controlled, decision package based on discrete event control system, continuous variable
Supplemented by driving, existing substantial amounts of discrete event control system in coordination unit also has substantial amounts of continuous variable to drive, execution unit with from
Dissipate based on event-driven, supplemented by continuous variable driving.
In the present invention based on the micro-grid connection control method for blending together hierarchical structure model including decision package
Control algolithm, coordination unit control algolithm and execution unit control algolithm.
The control of the decision package based on the micro-grid connection control method for blending together hierarchical structure model in the present invention
Algorithm includes micro-capacitance sensor active power dispatch, micro-capacitance sensor Reactive Power Dispatch, one-level points of common connection（PCC points）Quality of power supply regulation scheduling,
Micro-grid connection scheduling, the scheduling of micro-capacitance sensor isolated island.
The control of the coordination unit based on the micro-grid connection control method for blending together hierarchical structure model in the present invention
Algorithm includes distributed power source active power dispatch, distributed power source Reactive Power Dispatch, two grades of PCC points quality of power supply regulation scheduling, distributions
It is grid-connected that the scheduling of formula power grid, distributed generator islanding scheduling, one-level PCC points and network interface export real power control, one-level PCC points
Interface exports idle control, one-level PCC points and network interface output utility power quality control, one-level PCC points and network interface output integrated
Control, one-level PCC points connection control, one-level PCC points disconnect control.
The control of the execution unit based on the micro-grid connection control method for blending together hierarchical structure model in the present invention
Algorithm includes two grades of PCC points and network interface output real power control, two grades of PCC points and the idle control of network interface output, two grades of PCC points
And network interface output utility power quality control, two grades of PCC points and the control of network interface output integrated, two grades of PCC points connection control, two grades
PCC points disconnect control.
The tool of the control algolithm based on the micro-grid connection control method for blending together hierarchical structure model in the present invention
Body algorithm steps are as follows：
The first step：Micro-grid connection dispatching algorithm according to discrete input X1, decision-making discrete system state parameter G1, coordinate from
The discrete message s211 and decision-making continuous system mapping f1 of the system of dissipating input, provide micro-grid connection operational order collection j1；
Second step：Micro-capacitance sensor isolated island dispatching algorithm according to discrete input X1, decision-making discrete system state parameter G1, coordinate from
The discrete message s211 and decision-making continuous system mapping f1 of the system of dissipating input, provide micro-capacitance sensor islanding operation instruction set k1；
Micro-grid connection operational order collection j1 and micro-capacitance sensor islanding operation instruction set k1 constitutes the discrete of decision-making discrete system
Output Y1;
3rd step：Micro-capacitance sensor active power dispatch algorithm connects according to continuous input I1, decision-making continuous system state parameter H1, coordination
The continuous information r211 and decision-making discrete system mapping e1 of continuous system input, calculate the active capacity of micro-capacitance sensor and exert oneself collection P1；
4th step：Micro-capacitance sensor Reactive Power Dispatch algorithm connects according to continuous input I1, decision-making continuous system state parameter H1, coordination
The continuous information r211 and decision-making discrete system mapping e1 of continuous system input, calculate micro-capacitance sensor reactive capability and exert oneself collection Q1；
5th step：The one-level PCC points quality of power supply adjusts dispatching algorithm according to continuous input I1, decision-making continuous system state ginseng
Number H1, the continuous information r211 for coordinating continuous system input and decision-making discrete system mapping e1, calculate the electricity of one-level PCC points
Exert oneself UE1 and the current capacity quality of power supply of the pressure quality of power supply is exerted oneself collection IE1；
Exert oneself collection P1, reactive capability of active capacity exerts oneself collection Q1 and voltage power quality is exerted oneself UE1 and current capacity electric energy
Quality is exerted oneself and collects the continuous output O1 that IE1 constitutes decision-making continuous system；
6th step：The grid-connected dispatching algorithm of distributed power source according to discrete input X21, coordinate discrete system state parameter G21,
The discrete message s121 of decision-making discrete system input, the discrete message s31121 for performing discrete system input and the continuous system of coordination
System mapping f21, provides the grid-connected operational order j21 collection of distributed power source；
7th step：Distributed generator islanding dispatching algorithm according to discrete input X21, coordinate discrete system state parameter G21,
The discrete message s121 of decision-making discrete system input, the discrete message s31121 for performing discrete system input and the continuous system of coordination
System mapping f21, provides distributed generator islanding operational order collection k21；
8th step：One-level PCC points connect control algolithm according to discrete input X21, coordination discrete system state parameter G21,
The discrete message s121 of decision-making discrete system input, the discrete message s31121 for performing discrete system input, coordination continuous system
The mapping f21 and micro-grid connection operational order collection j1 of decision-making discrete system output, carries out micro-grid connection interface input simultaneously
The control operation of net, and export grid-connected mode of operation collection L21；
9th step：One-level PCC points disconnect control algolithm according to discrete input X21, coordination discrete system state parameter G21,
The discrete message s121 of decision-making discrete system input, the discrete message s31121 for performing discrete system input, coordination continuous system
The mapping f21 and micro-capacitance sensor islanding operation instruction set k1 of decision-making discrete system output, carries out micro-grid connection interface and exits simultaneously
The control operation collection of net, output islanding operation state set M21；
Distributed power source start-up operation instruction k21, distributed power source stop operational order collection j21 and grid-connected mode of operation collection
L21, islanding operation state set M21 constitute the discrete output Y21 for coordinating discrete system；
Tenth step：Distributed power source active power dispatch algorithm according to continuous input I21, coordinate continuous system state parameter H21,
The continuous information r121 of decision-making continuous system input, the continuous information r31121 for performing continuous system input and the discrete system of coordination
System mapping e21, calculate the active capacity of distributed power source exert oneself and the active supply of load collection P21；
11st step：Distributed power source Reactive Power Dispatch algorithm is according to continuous input I21, coordination continuous system state parameter
H21, decision-making continuous system input continuous information r121, perform continuous system input continuous information r31121 and coordinate from
The system of dissipating mapping e21, calculates the collection Q1 that distributed power source reactive capability is exerted oneself and reactive load is supplied；
12nd step：Two grades of PCC points quality of power supply regulation dispatching algorithms are according to continuous input I21, coordination continuous system shape
State parameter H21, decision-making continuous system input continuous information r121, perform continuous system input continuous information r31121 and
Coordinate discrete system mapping e21, the voltage power quality UE21 that exerts oneself for calculating two grades of PCC points goes out with the current capacity quality of power supply
Power collection IE21；
13rd step：Simultaneously network interface output real power control algorithm is input into I21, coordination continuously system to one-level PCC points according to continuous
System state parameter H21, the continuous information r121 of decision-making continuous system input, the continuous information for performing continuous system input
The active capacity of r31121, coordination discrete system mapping e21 and the output of decision-making continuous system is exerted oneself and collects P1, carries out micro-capacitance sensor simultaneously
The active output dynamic control of network interface, and export active dynamic control signal collection PL21；
14th step：Simultaneously the idle control algolithm of network interface output is continuously one-level PCC points according to continuous input I21, coordination
System state parameter H21, the continuous information r121 of decision-making continuous system input, the continuous information for performing continuous system input
The reactive capability of r31121, coordination discrete system mapping e21 and the output of decision-making continuous system is exerted oneself and collects Q1, carries out micro-capacitance sensor simultaneously
Output dynamic control that network interface is idle, and export idle dynamic control signal collection QL21；
15th step：Simultaneously network interface output utility power quality control algorithm is input into I21, coordination company to one-level PCC points according to continuous
Continuous system status parameters H21, the continuous information r121 of decision-making continuous system input, the continuous information for performing continuous system input
R31121, coordinate discrete system mapping e21 and the voltage power quality of decision-making continuous system output is exerted oneself UE1 and current capacity
The quality of power supply is exerted oneself and collects IE1, carries out micro-grid connection interface for the dynamic control of quality of power supply regulation, and output voltage electric energy
Penetration quality dynamic control signal collection UL211, electric current quality of power supply dynamic control signal collection IL21；
16th step：Simultaneously network interface output integrated control algolithm is continuously one-level PCC points according to continuous input I21, coordination
System state parameter H21, the continuous information r121 of decision-making continuous system input, the continuous information for performing continuous system input
R31121, exert oneself collection P1, the reactive capability of active capacity for coordinating discrete system mapping e21 and the output of decision-making continuous system are exerted oneself
Collection Q1, voltage power the quality UE1 that exerts oneself exert oneself with the current capacity quality of power supply and collect IE1, carry out micro-grid connection interface synthesis use
In the dynamic control of active output, reactive-load compensation and the quality of power supply regulation, and output integrated dynamic control signal collection ZL21；
Active capacity exert oneself collection Q21, voltage power quality of collection P21, reactive capability of exerting oneself is exerted oneself UE21, current capacity electric energy
Quality is exerted oneself and collects IE21 and active dynamic control signal collection PL21, idle dynamic control signal collection QL21, voltage power quality
Dynamic control signal collection UL21, electric current quality of power supply dynamic control signal collection IL21, comprehensive dynamic control signal collection ZL211 are constituted
Coordinate the continuous output O21 of continuous system；
17th step：Two grades of PCC points connection control algolithms are according to discrete input X311, execution discrete system state parameter
G311, the discrete message s21311 for coordinating discrete system input, execution continuous system mapping f311 and coordination discrete system are defeated
The grid-connected operational order k21 of distributed power source for going out, carries out distributed power source and network interface input is grid-connected and distributed power source starts
Control operation, and export distributed power source cutting-in control operation set L311；
18th step：Two grades of PCC points disconnect control algolithm according to discrete input X311, execution discrete system state parameter
G311, the discrete message s21311 for coordinating discrete system input, execution continuous system mapping f311 and coordination discrete system are defeated
The distributed generator islanding operational order collection j21 for going out, carries out distributed power source and network interface exits grid-connected and distributed power source and stops
The control operation of machine, and export distributed generator islanding control operation collection M311；
Distributed power source cutting-in control operation set L311, distributed generator islanding control operation collection M311 are constituted and are coordinated discrete
The discrete output Y311 of system；
19th step：Two grades of PCC points and network interface output real power control algorithm according to continuous input I311, perform and be continuously
System state parameter H311, the continuous information r21311 for coordinating continuous system input and the active capacity for coordinating continuous system output
Exert oneself collection P211, carries out the dynamic control of distributed power source and the active output of network interface, and export active dynamic control signal collection
PL311；
20th step：Two grades of PCC points and network interface export idle control algolithm according to continuous input I311, perform and be continuously
System state parameter H311, the continuous information r21311 for coordinating continuous system input and the reactive capability for coordinating continuous system output
Exert oneself collection Q211, carries out the dynamic control of distributed power source and the idle output of network interface, and export idle dynamic control signal collection
QL311；
21st step：Two grades of PCC points and network interface output utility power quality control algorithm is according to continuous input I311, execution
Continuous system state parameter H311, the continuous information r21311 for coordinating continuous system input and the electricity for coordinating continuous system output
Exert oneself UE21 and the current capacity quality of power supply of the pressure quality of power supply is exerted oneself collection IE21, carries out distributed power source and network interface is used for electric energy
The dynamic control of quality adjustment, and output voltage quality of power supply dynamic control signal collection UL311, electric current quality of power supply dynamic control
Signal collection IL311；
22nd step：Two grades of PCC points and network interface output integrated control algolithm according to continuous input I311, perform continuously
What system status parameters H311, the continuous information r21311 for coordinating continuous system input and coordination continuous system were exported has power capacity
Measure exert oneself collection Q21, voltage power quality of power collection P21, reactive capability and exert oneself UE21 and the current capacity quality of power supply is exerted oneself collection
IE21, carries out the grid-connected interface synthesis of distributed power source for the dynamic control of active output, reactive-load compensation and the quality of power supply regulation,
And output integrated dynamic control signal collection ZL311.
Active dynamic control signal collection PL311, idle dynamic control signal collection QL311, the control of voltage power penetration quality dynamic
Signal collection UL311, electric current quality of power supply dynamic control signal collection IL311, comprehensive dynamic control signal collection ZL311 are constituted and are coordinated to connect
The continuous output O311 of continuous system.
The technical effects of the invention are that：The present invention blendes together hierarchical structure model pair using in hybrid system theory
Micro-grid connection operation carries out grading control, and decision package coordinates single based on discrete event control system, supplemented by continuous variable driving
Existing substantial amounts of discrete event control system in unit, also has substantial amounts of continuous variable to drive, execution unit based on discrete event control system,
Supplemented by continuous variable drives, can fully, it is true, whole, subtly reflection micro-grid connection run blend together behavioural characteristic, disappear
Except the technical problem of uncontrollable composition, control accuracy, and the design of energy simplify control device are improve, improve micro-grid connection fortune
The reliability and economy of row control, can also strengthen the adaptability that controller is expanded to control object, be not limited to specific micro-
The structure and synchronizing mode of power network, realize the good combination of high efficiency, economy, reliability, universality.
The core devices of the digital signal processing unit of control module of the invention use high-speed floating point
TMS320LF28343A chips.
Brief description of the drawings
Fig. 1 is micro-grid connection operation of the invention based on the micro-grid connection control method for blending together hierarchical structure model
Electric network model.
Fig. 2 is that invention blendes together Recurison order hierarchy knot based on the micro-grid connection control method for blending together hierarchical structure model
Structure Control system architecture model.
Fig. 3 is algorithm routine flow of the invention based on the micro-grid connection control method for blending together hierarchical structure model
Figure.
Specific embodiment
With reference to simulated grid illustraton of model of the invention based on the micro-grid connection control method for blending together hierarchical structure model
What the 1st, emulation blended together recursive hierarchy structure control system model 2 and micro-grid connection control method blendes together hierarchical structure model
Algorithm routine flow chart 3, describes specific embodiment of the invention and the course of work.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 1 is electric network model, and main power network is connected to M micro-capacitance sensor, and each micro-capacitance sensor is connected to Nw（w=
NA, NB..., NM）Distribution type power supply or load, Fig. 2 blend together hierarchical structure model control system for power network shown in Fig. 1
Structural model, discrete input set X is the event that power network may be suffered from（Safety, economy, the quality of power supply）Set, and there is X=to determine
The discrete input X1 ∪ of plan coordinate discrete input X21 ∪ and perform discrete input X311, and continuous input I is power network each point instantaneous voltage
With the set of each line current instantaneous value of power network, and have I=decision-makings be continuously input into I1 ∪ coordinate continuous input I21 ∪ perform it is continuous
Input I311, discrete output Y=decision-making discrete outputs Y1+ coordinate discrete output Y21+ and perform discrete output Y311, continuously export O=
It is each equipment fortune of power network that decision-making continuously exports O1+ and coordinate continuous output O21+ to perform continuous output O311, discrete state parameter set G
Row state（Normally, failure）With the set of connection status, and there are discrete system state parameter collection G=decision-making discrete system parameter sets
G1 ∪ coordinate discrete system parameter set G21 ∪ and perform discrete system parameter set G311, and continuous state parameter setting collection is power network
The set of impedance, line length, electric power and power quality parameter calibration value, and have continuous system state parameter collection H=decision-makings continuous
It is micro-grid connection that set of system parameters H1 ∪ coordinate continuous system parameter set H21 ∪ to perform continuous system parameter set H311, Fig. 3
Blend together recursive hierarchy structure control algolithm.Micro-grid connection control whole work process be：Decision package receives main power network, micro-
The points of common connection of power network and main power network and micro-capacitance sensor（One-level PCC points）Parameters of electric power and power quality parameter, according to mixed
Into hierarchical structure model carry out the active, idle of micro-capacitance sensor in power network, quality of power supply scheduling, each micro-capacitance sensor of decision-making has
Work(, it is idle, the quality of power supply exert oneself, the result of decision is sent to coordination control unit；Coordination unit receives to come from decision package
With the information of execution unit, and coordinate and process, receive distributed power source and load and micro-capacitance sensor in micro-capacitance sensor with
The points of common connection of distributed power source（Two grades of PCC points）Parameters of electric power and power quality parameter, according to blending together Recurison order hierarchy knot
Structure model carries out the active, idle of distributed power source and load in micro-capacitance sensor, quality of power supply scheduling, decision-making each distributed power source
Active, idle, the quality of power supply with load is exerted oneself or consumption, and the result of decision is sent into execution control unit, according to blending together
Hierarchical structure model carries out micro-grid connection interface（One-level PCC points）Output control, ensure each micro-capacitance sensor and power network
Active, idle, the quality of power supply balance；Execution unit receives the information from superordinate elements and intermediate unit, and is located
Reason and feedback, receive distributed power source or load and its points of common connection with micro-capacitance sensor（Two grades of PCC points）Parameters of electric power and
Power quality parameter, distributed power source and network interface in micro-capacitance sensor are carried out according to hierarchical structure model is blended together（Two grades of PCC
Point）Output and active, the idle, utility power quality control of load power interface input.
In the present invention based on the micro-grid connection control method for blending together hierarchical structure model including decision package
Control algolithm, coordination unit control algolithm and execution unit control algolithm.
The control of the decision package based on the micro-grid connection control method for blending together hierarchical structure model in the present invention
Algorithm includes that micro-capacitance sensor active power dispatch, micro-capacitance sensor Reactive Power Dispatch, one-level PCC points quality of power supply regulation scheduling, micro-grid connection are adjusted
Degree, the scheduling of micro-capacitance sensor isolated island.
The control of the coordination unit based on the micro-grid connection control method for blending together hierarchical structure model in the present invention
Algorithm includes distributed power source active power dispatch, distributed power source Reactive Power Dispatch, two grades of PCC points quality of power supply regulation scheduling, distributions
It is grid-connected that the scheduling of formula power grid, distributed generator islanding scheduling, one-level PCC points and network interface export real power control, one-level PCC points
Interface exports idle control, one-level PCC points and network interface output utility power quality control, one-level PCC points and network interface output integrated
Control, one-level PCC points connection control, one-level PCC points disconnect control.
The control of the execution unit based on the micro-grid connection control method for blending together hierarchical structure model in the present invention
Algorithm includes two grades of PCC points and network interface output real power control, two grades of PCC points and the idle control of network interface output, two grades of PCC points
And network interface output utility power quality control, two grades of PCC points and the control of network interface output integrated, two grades of PCC points connection control, two grades
PCC points disconnect control.
The tool of the control algolithm based on the micro-grid connection control method for blending together hierarchical structure model in the present invention
Body algorithm steps are as follows：
The first step：Micro-grid connection dispatching algorithm according to discrete input X1, decision-making discrete system state parameter G1, coordinate from
The discrete message s211 and decision-making continuous system mapping f1 of the system of dissipating input, provide micro-grid connection operational order collection j1；
Second step：Micro-capacitance sensor isolated island dispatching algorithm according to discrete input X1, decision-making discrete system state parameter G1, coordinate from
The discrete message s211 and decision-making continuous system mapping f1 of the system of dissipating input, provide micro-capacitance sensor islanding operation instruction set k1；
Micro-grid connection operational order collection j1 and micro-capacitance sensor islanding operation instruction set k1 constitutes the discrete of decision-making discrete system
Output Y1；
3rd step：Micro-capacitance sensor active power dispatch algorithm connects according to continuous input I1, decision-making continuous system state parameter H1, coordination
The continuous information r211 and decision-making discrete system mapping e1 of continuous system input, calculate the active capacity of micro-capacitance sensor and exert oneself collection P1；
4th step：Micro-capacitance sensor Reactive Power Dispatch algorithm connects according to continuous input I1, decision-making continuous system state parameter H1, coordination
The continuous information r211 and decision-making discrete system mapping e1 of continuous system input, calculate micro-capacitance sensor reactive capability and exert oneself collection Q1；
5th step：The one-level PCC points quality of power supply adjusts dispatching algorithm according to continuous input I1, decision-making continuous system state ginseng
Number H1, the continuous information r211 for coordinating continuous system input and decision-making discrete system mapping e1, calculate the electricity of one-level PCC points
Exert oneself UE1 and the current capacity quality of power supply of the pressure quality of power supply is exerted oneself collection IE1；
Exert oneself collection P1, reactive capability of active capacity exerts oneself collection Q1 and voltage power quality is exerted oneself UE1 and current capacity electric energy
Quality is exerted oneself and collects the continuous output O1 that IE1 constitutes decision-making continuous system；
6th step：The grid-connected dispatching algorithm of distributed power source according to discrete input X21, coordinate discrete system state parameter G21,
The discrete message s121 of decision-making discrete system input, the discrete message s31121 for performing discrete system input and the continuous system of coordination
System mapping f21, provides the grid-connected operational order j21 collection of distributed power source；
7th step：Distributed generator islanding dispatching algorithm according to discrete input X21, coordinate discrete system state parameter G21,
The discrete message s121 of decision-making discrete system input, the discrete message s31121 for performing discrete system input and the continuous system of coordination
System mapping f21, provides distributed generator islanding operational order collection k21；
8th step：One-level PCC points connect control algolithm according to discrete input X21, coordination discrete system state parameter G21,
The discrete message s121 of decision-making discrete system input, the discrete message s31121 for performing discrete system input, coordination continuous system
The mapping f21 and micro-grid connection operational order collection j1 of decision-making discrete system output, carries out micro-grid connection interface input simultaneously
The control operation of net, and export grid-connected mode of operation collection L21；
9th step：One-level PCC points disconnect control algolithm according to discrete input X21, coordination discrete system state parameter G21,
The discrete message s121 of decision-making discrete system input, the discrete message s31121 for performing discrete system input, coordination continuous system
The mapping f21 and micro-capacitance sensor islanding operation instruction set k1 of decision-making discrete system output, carries out micro-grid connection interface and exits simultaneously
The control operation collection of net, output islanding operation state set M21；
Distributed power source start-up operation instruction k21, distributed power source stop operational order collection j21 and grid-connected mode of operation collection
L21, islanding operation state set M21 constitute the discrete output Y21 for coordinating discrete system；
Tenth step：Distributed power source active power dispatch algorithm according to continuous input I21, coordinate continuous system state parameter H21,
The continuous information r121 of decision-making continuous system input, the continuous information r31121 for performing continuous system input and the discrete system of coordination
System mapping e21, calculate the active capacity of distributed power source exert oneself and the active supply of load collection P21；
11st step：Distributed power source Reactive Power Dispatch algorithm is according to continuous input I21, coordination continuous system state parameter
H21, decision-making continuous system input continuous information r121, perform continuous system input continuous information r31121 and coordinate from
The system of dissipating mapping e21, calculates the collection Q1 that distributed power source reactive capability is exerted oneself and reactive load is supplied；
12nd step：Two grades of PCC points quality of power supply regulation dispatching algorithms are according to continuous input I21, coordination continuous system shape
State parameter H21, decision-making continuous system input continuous information r121, perform continuous system input continuous information r31121 and
Coordinate discrete system mapping e21, the voltage power quality UE21 that exerts oneself for calculating two grades of PCC points goes out with the current capacity quality of power supply
Power collection IE21；
13rd step：Simultaneously network interface output real power control algorithm is input into I21, coordination continuously system to one-level PCC points according to continuous
System state parameter H21, the continuous information r121 of decision-making continuous system input, the continuous information for performing continuous system input
The active capacity of r31121, coordination discrete system mapping e21 and the output of decision-making continuous system is exerted oneself and collects P1, carries out micro-capacitance sensor simultaneously
The active output dynamic control of network interface, and export active dynamic control signal collection PL21；
14th step：Simultaneously the idle control algolithm of network interface output is continuously one-level PCC points according to continuous input I21, coordination
System state parameter H21, the continuous information r121 of decision-making continuous system input, the continuous information for performing continuous system input
The reactive capability of r31121, coordination discrete system mapping e21 and the output of decision-making continuous system is exerted oneself and collects Q1, carries out micro-capacitance sensor simultaneously
Output dynamic control that network interface is idle, and export idle dynamic control signal collection QL21；
15th step：Simultaneously network interface output utility power quality control algorithm is input into I21, coordination company to one-level PCC points according to continuous
Continuous system status parameters H21, the continuous information r121 of decision-making continuous system input, the continuous information for performing continuous system input
R31121, coordinate discrete system mapping e21 and the voltage power quality of decision-making continuous system output is exerted oneself UE1 and current capacity
The quality of power supply is exerted oneself and collects IE1, carries out micro-grid connection interface for the dynamic control of quality of power supply regulation, and output voltage electric energy
Penetration quality dynamic control signal collection UL211, electric current quality of power supply dynamic control signal collection IL21；
16th step：Simultaneously network interface output integrated control algolithm is continuously one-level PCC points according to continuous input I21, coordination
System state parameter H21, the continuous information r121 of decision-making continuous system input, the continuous information for performing continuous system input
R31121, exert oneself collection P1, the reactive capability of active capacity for coordinating discrete system mapping e21 and the output of decision-making continuous system are exerted oneself
Collection Q1, voltage power the quality UE1 that exerts oneself exert oneself with the current capacity quality of power supply and collect IE1, carry out micro-grid connection interface synthesis use
In the dynamic control of active output, reactive-load compensation and the quality of power supply regulation, and output integrated dynamic control signal collection ZL21；
Active capacity exert oneself collection Q21, voltage power quality of collection P21, reactive capability of exerting oneself is exerted oneself UE21, current capacity electric energy
Quality is exerted oneself and collects IE21 and active dynamic control signal collection PL21, idle dynamic control signal collection QL21, voltage power quality
Dynamic control signal collection UL21, electric current quality of power supply dynamic control signal collection IL21, comprehensive dynamic control signal collection ZL211 are constituted
Coordinate the continuous output O21 of continuous system；
17th step：Two grades of PCC points connection control algolithms are according to discrete input X311, execution discrete system state parameter
G311, the discrete message s21311 for coordinating discrete system input, execution continuous system mapping f311 and coordination discrete system are defeated
The grid-connected operational order k21 of distributed power source for going out, carries out distributed power source and network interface input is grid-connected and distributed power source starts
Control operation, and export distributed power source cutting-in control operation set L311；
18th step：Two grades of PCC points disconnect control algolithm according to discrete input X311, execution discrete system state parameter
G311, the discrete message s21311 for coordinating discrete system input, execution continuous system mapping f311 and coordination discrete system are defeated
The distributed generator islanding operational order collection j21 for going out, carries out distributed power source and network interface exits grid-connected and distributed power source and stops
The control operation of machine, and export distributed generator islanding control operation collection M311；
Distributed power source cutting-in control operation set L311, distributed generator islanding control operation collection M311 are constituted and are coordinated discrete
The discrete output Y311 of system；
19th step：Two grades of PCC points and network interface output real power control algorithm according to continuous input I311, perform and be continuously
System state parameter H311, the continuous information r21311 for coordinating continuous system input and the active capacity for coordinating continuous system output
Exert oneself collection P211, carries out the dynamic control of distributed power source and the active output of network interface, and export active dynamic control signal collection
PL311；
20th step：Two grades of PCC points and network interface export idle control algolithm according to continuous input I311, perform and be continuously
System state parameter H311, the continuous information r21311 for coordinating continuous system input and the reactive capability for coordinating continuous system output
Exert oneself collection Q211, carries out the dynamic control of distributed power source and the idle output of network interface, and export idle dynamic control signal collection
QL311；
21st step：Two grades of PCC points and network interface output utility power quality control algorithm is according to continuous input I311, execution
Continuous system state parameter H311, the continuous information r21311 for coordinating continuous system input and the electricity for coordinating continuous system output
Exert oneself UE21 and the current capacity quality of power supply of the pressure quality of power supply is exerted oneself collection IE21, carries out distributed power source and network interface is used for electric energy
The dynamic control of quality adjustment, and output voltage quality of power supply dynamic control signal collection UL311, electric current quality of power supply dynamic control
Signal collection IL311；
22nd step：Two grades of PCC points and network interface output integrated control algolithm according to continuous input I311, perform continuously
What system status parameters H311, the continuous information r21311 for coordinating continuous system input and coordination continuous system were exported has power capacity
Measure exert oneself collection Q21, voltage power quality of power collection P21, reactive capability and exert oneself UE21 and the current capacity quality of power supply is exerted oneself collection
IE21, carries out the grid-connected interface synthesis of distributed power source for the dynamic control of active output, reactive-load compensation and the quality of power supply regulation,
And output integrated dynamic control signal collection ZL311.
Active dynamic control signal collection PL311, idle dynamic control signal collection QL311, the control of voltage power penetration quality dynamic
Signal collection UL311, electric current quality of power supply dynamic control signal collection IL311, comprehensive dynamic control signal collection ZL311 are constituted and are coordinated to connect
The continuous output O311 of continuous system.
The present invention using decision-making, coordination, is performed based on the micro-grid connection control method for blending together hierarchical structure model
Grading control.Decision package is easy to management global based on discrete event control system, supplemented by continuous variable driving；In coordination unit
Existing substantial amounts of discrete event control system, also has substantial amounts of continuous variable to drive, and in order to manage local micro-capacitance sensor, also allows for filling
Point, it is true, whole, subtly reflection micro-grid connection operation blend together behavioural characteristic；Execution unit is with discrete event control system
It is main, supplemented by continuous variable drives, can fully, it is true, whole, subtly reflect distributed power source and load operation blend together row
It is characterized, eliminates the technical problem of uncontrollable composition, improves control accuracy, and the design of energy simplify control device.With base
In the micro-grid connection control method for blending together hierarchical structure model, can effectively improve micro-grid connection operation control can
By property and economy, can also strengthen the adaptability that controller is expanded to control object, and be not limited to the knot of specific micro-capacitance sensor
Structure and synchronizing mode, it is achieved that the good combination of high efficiency, economy, reliability, universality, with extensive practicality
Property, engineering application value is great.
Claims (4)
1. a kind of invention is based on blending together the micro-grid connection control method of hierarchical structure model, and micro-grid connection operation is adopted
With decision-making, coordination, perform three-level and blend together and pass rank unit and be controlled, basic composition includes decision package control algolithm, coordinates list
First control algolithm, execution unit control algolithm；Based on discrete event control system, continuous variable is driven to described decision package
Auxiliary, existing substantial amounts of discrete driving event in coordination unit also has substantial amounts of continuous variable to drive, and execution unit is with discrete event
Based on driving, supplemented by continuous variable driving；Described decision package receives main power network, micro-capacitance sensor and main power network and micro-capacitance sensor
The parameters of electric power and power quality parameter of points of common connection, micro-capacitance sensor in power network is carried out according to hierarchical structure model is blended together
Active, idle, quality of power supply scheduling, active, idle, the quality of power supply the exerting oneself of decision-making each micro-capacitance sensor, the result of decision is sent out
It is sent to coordination control unit；Coordination unit receives the information from decision package and execution unit, and coordinates and process, and connects
By the distributed power source and load and micro-capacitance sensor in micro-capacitance sensor and the parameters of electric power and electricity of the points of common connection of distributed power source
Energy mass parameter, distributed power source and the active, idle of load, electricity in micro-capacitance sensor are carried out according to hierarchical structure model is blended together
Energy quality scheduling, each distributed power source of decision-making and the active, idle, the quality of power supply of load are exerted oneself or consumption, by decision-making knot
Fruit is sent to execution control unit, and the output control of micro-grid connection interface is carried out according to hierarchical structure model is blended together, and protects
Hinder active, idle, the quality of power supply the balance of each micro-capacitance sensor and power network；Execution unit receives to come from superordinate elements and middle rank list
The information of unit, and processed and fed back, receive the electric power ginseng of the points of common connection of distributed power source or load and its micro-capacitance sensor
Number and power quality parameter, according to blend together hierarchical structure model carry out in micro-capacitance sensor distributed power source and network interface output and
Active, the idle, utility power quality control of load power interface input.
2. according to claim 1 based on the micro-grid connection control method for blending together hierarchical structure model, it is characterized in that
Decision package control algolithm based on the micro-grid connection control method for blending together hierarchical structure model includes that micro-capacitance sensor is active
Scheduling, micro-capacitance sensor Reactive Power Dispatch, one-level points of common connection (PCC points) quality of power supply regulation scheduling, micro-grid connection scheduling, micro- electricity
The algorithm composition of net isolated island scheduling.
3. according to claim 1 based on the micro-grid connection control method for blending together hierarchical structure model, it is characterized in that
Coordination unit control algolithm based on the micro-grid connection control method for blending together hierarchical structure model includes distributed power source
Active power dispatch, distributed power source Reactive Power Dispatch, two grades of PCC points quality of power supply regulation scheduling, the grid-connected scheduling of distributed power source, distributions
The scheduling of formula generator islanding, one-level PCC points and network interface output real power control, one-level PCC points and the idle control of network interface output, one
Level PCC points and network interface output utility power quality control, one-level PCC points and the control of network interface output integrated, the connection control of one-level PCC points
System, one-level PCC points disconnect the algorithm composition of control.
4. according to claim 1 based on the micro-grid connection control method for blending together hierarchical structure model, it is characterized in that
Execution unit control algolithm based on the micro-grid connection control method for blending together hierarchical structure model includes two grades of PCC points simultaneously
Network interface output real power control, two grades of PCC points and network interface export idle control, two grades of PCC points and network interface output electric energy matter
Amount control, two grades of PCC points and the control of network interface output integrated, two grades of PCC points connect control, two grades of PCC points and disconnect the calculation of control
Method is constituted.
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| KR20110119027A (en) * | 2010-04-26 | 2011-11-02 | 세일기술 주식회사 | A complex power grid system comprising illuminating lamps having power generation systems |
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| KR20110119027A (en) * | 2010-04-26 | 2011-11-02 | 세일기술 주식회사 | A complex power grid system comprising illuminating lamps having power generation systems |
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